Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Biomed Environ Sci. 1996 Dec;9(4):430-6.

Effect of acetaldehyde on oxidoreductases in tissues of rats at different ages.

Author information

  • 1Department of Zoology, S. V. University, Tirupati, India.

Abstract

The toxicity of acetaldehyde and age related changes on oxidoreductases in the liver, brain, kidney, and muscle of female albino rats (Wistar strain) were studied. The specific activities of lactate [LDH], isocitrate [ICDH (NAD/NADP)], succinate [SDH], malate [MDH], glutamate [GDH] and glucose-6-Phosphate [G-6-PDH] dehydrogenases were significantly increased as a function of age. However, acetaldehyde treatment significantly inhibited oxidoreductases in the tissue of 21, 90 and 180 day old rats. Liver enzymes of young (21 days) rats exhibited greater sensitivity to acetaldehyde toxicity. Similar inhibition of oxidoreductases in brain and kidney of adult (180 days) rats treated with acetaldehyde was observed. LDH and GDH as compared to other enzymes studied showed higher susceptibility to acetaldehyde toxicity. The differential sensitivity of tissues and inhibition of oxidoreductases by acetaldehyde as a function of age could be attributed to hypoxic conditions, energy crisis, and mitochondrial structural changes. The results suggest that acetaldehyde affects oxidation of glucose via HMP shunt pathway, glycolytic pathways and Krebs cycle resulting in the impairment of carbohydrate metabolism.

PMID:
8988813
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk